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    {
      "cell_type": "code",
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      "source": [
        "%matplotlib inline"
      ]
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    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Plotting Cross-Validated Predictions\n\n\nThis example shows how to use\n:func:`~sklearn.model_selection.cross_val_predict` to visualize prediction\nerrors.\n\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "from sklearn import datasets\nfrom sklearn.model_selection import cross_val_predict\nfrom sklearn import linear_model\nimport matplotlib.pyplot as plt\n\nlr = linear_model.LinearRegression()\nX, y = datasets.load_boston(return_X_y=True)\n\n# cross_val_predict returns an array of the same size as `y` where each entry\n# is a prediction obtained by cross validation:\npredicted = cross_val_predict(lr, X, y, cv=10)\n\nfig, ax = plt.subplots()\nax.scatter(y, predicted, edgecolors=(0, 0, 0))\nax.plot([y.min(), y.max()], [y.min(), y.max()], 'k--', lw=4)\nax.set_xlabel('Measured')\nax.set_ylabel('Predicted')\nplt.show()"
      ]
    }
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